Binder and securing-clip joint therefor.



H. G. BUOHAN.

BINDE'QWAND SECURING CLIP JOINT THEREEUR.

AP'PLlOA'I'ION FILED AWL 1.9, 1909v $14k 1 g g Fatented Feb. 14:, 1911.

" lim/tu a: gvwami oz UNITED STA'lLES PATENT OFFICE.

HUGH 'GELLROY BUCHAN, OLE NEWARK, NEW JERSEY.

BINDER AND SECURING-GL1 JOINT THEREFOR,

Specification of Letters I'atent.

Patented Feb. 14, 1911.

Application flied August 19, 1909. Serial No. 513,589.

To all whom it may concern:

'Be it known that I, I'IUGH GELLuoY BUCIIAN, of the city of Newark, in the county of Essex and State of New Jersey, have invented certain new andnseful Improveinents in Binders and Securing-Clip 'Joints Therefor and for other Purposes, of

which the following is a specification.

The objeetsof my invent on, are first, to })10\1(l0 a cheap, simple and strong securingclip for use in mechanically, and without the aid of adhesives, securing strips or sheets of leather or other flexible fabrics to the edges of metallic strips or straight edges, which strips or straight edges are usually but not necessarily of segmental form. in cross-section; an'dsec'ond, to rovide bindings of all sorts, having a meta lie-or partially metallic back-piece, whether such binders are of the form known asleose' or removable leaf-b1nders, or are permanent binding w th such mechanical securing or locking clip,

by the use, of which the side fpieces .or bind- "111g boards of the binder'ma'y be easily and quickly secured to the, bac'lopiece, in such manner as to be absolutely safe against any but intentional separation thereform.

My said invention consists broadly in the discovery of the: fact, and practical appli cation thereof, that when a flexible fabric is doubled upon itself, and the fold thereof pressed by the edge of a sheet or straight edge of metal, which is preferably but not necessarily ofsegmental form in cross-sec tion, through t-he longitudinal slit in the peripheral wall of a'siibstantia lly cylindrical tube and into the interior of such tube, (which is preferably of brass or other resilient sprin metal), and a free end ofithe fabric is t ion drawn tightly around the periphery of the tube, that the tighter the fabric isso drawn, the more securely will this drawing,- by the straining around the tube exerted upon one side of the slit, so rock the tube upon the sheet as to lock the fabric to the tube by the pressure thus brought upon the fabric by the opposite side of the slit; and itis self evident from an examination of' the drawing, that when properly made and proportioned, and puttogether, this new and improved joint of my inven tion, thus madelbetween the fabric and the straight edge, cannot be unintentionally sep arated save by fracture.

Said invention .is

r M lly shown and described in thejolloyy gpg specification, of

which the accompanying drawing forms a part, wherein similar letters. or numerals of reference designate like or equivalent parts, whereverfound throughout the several views, and in which- Figure l is an end view in central cross section of the rear or back-piece side of a binder of loose leaf form, showing my said invention applied thereto; Fig. 2 is a side view in detail, partially in central vertical section, of the sleeve-nut and its ivot connection with the lower segment 0 the backa piece, forming a portion. of the locking mechanism of my improved forurof binder; Fig. 3 is a like end View of that portion of Fig. 1, showing my said inventionof the securing-clip and its self-locking action; and Fig. 4 is a view in detail of the slitted substanfially cylindrical clip-tube, which is more fully shown in Figs. 1 and 3, and which in combination with the co-acting parts shown in said Figs. 1 and 3, forms the substance and essence of my invention.

Referring to, the drawings: The reference letter A designates the binding board and B the body of loose leaves bound.

C designates the upper and C the lower of two metallic substantially segmental shaped back-pieces, which together form the back of the binder, which are hinged together at their rear and abutting edges by the hollow coiled portions 11, formed integral therewith, which in combination with the hinge-bolt 13, joining them together, form a hinge joint .as shown; so that upon screwing the loclescrew-bolt 16 fully out of the co-aptihg sleeve-nut 18, (which is pivotally sedured tothe botloin segment- C ofthe back-piece by a joint 19f which permits such sleeve-nut to rock to the front and frcar)- the upper segment G of the back-piece together with the top cover board, may be thrown back into the open position shown in Fig.1 3, when the loose leaves B may be wholly or in part removed from the binder and new ones inserted; and upon closing the hinge segnients together again, and screwing the loclescrew bolt 16 fully home into the sleeve-nut 18, the new bundle of loose leaves will be firmly bound therein and the binder be again ready for use.

The two cover-boards A are usually secured together by an enter more or less flexiblebaclt-covering piece 23, formed integral with or secured to such boards in any de sired manner, which baclocovering piece 23 the axis of the nut.

stout flexible fabric, which is firmly glued or otherwise secured to the cover-board A on that side, as shown at 34, by means of a securing-clip 21, which clip, and the nonadhesively secured joint of'which such clip forms a part, is the main portion andessence of my invention, set forth, described and claimed herein, whether used in book binding or for other purposes.

As shown in detail in Fig 4 and in crosssection and under strain in Fig. 3, my improved securing-clip 21 consists of a tube of resilient meta-l, usually spring-brass, which is substantially cylindrical or circular, in cross-section, and is provided with a nar row longitudinal slit 35, preferably extend ing from end to end thereof, of such width that considerable force must necessarily be used to force the slitted tube down over the flexible backin -strip 20, when the same is doubled or fol ed over the straight edge of one of the segmental pieces C or G, and into the positlon shown in Figs. 1 and 3. And it is self-evident from the drawing, that when in such position, strain upon the-flexible backing-strip 20, however great, cannot draw the same out of the clip-tube s such strain is alwaysexerted around and en the peripheral surface thereof, so as to cause a rocking movement of such tube upon its axis by the strain and pressure exerted upon the inner edge a of the slit 35, which would cause an inward movement of the outer edge of the slit, as shown greatly exaggerated in Fig. 3, so as to bring about a biting and binding pressure upon the fabric 20 at'the point'b, so as to bind the same firmly upon the segment 0 or C, which biting .and binding action will always increase with the-strain uponv the fabric 20 in such ratio as, to prevent any drawing away of the same from the tube and segment.-

To form. the cheap ilild eflicient pivot joint 19' of my improved form, which I prefer to use in securing the sleei e-nut 18 to the bottom segment C, as shown in Figs. 1 and 2, the two lugs 32 are first swaged outward from the segment, so as to permit the insertion of the sleeve-nut 18; the side pivot lugs seer which sleeve-nut are forn'ied integral"therewith at the bottom on opposite sides, extending outward at a right, angle to After. such insertion, the lugs 32 of the segment are swaged back intothevsecuring position shown, against.

thefrearand pivot end of the sleeve-nut, so

as to hold the lugs 33 firmly into the reversedpivot depressions 34, formed in the se ment C, by the swaging operation, all as 0 early shown in detail in Fig. 2.

It will thus be seen that in my improved securing clip 21., and the joint betweena straight edge and a flexible fabric of which the same forms a part, I have evolved and invented a perfect device for securing a fabric to a metalsheet or straight-edge, without the aid of rivets or adhesives; and

, while I have shown my said invention as specifically applied herein to a segmental back-binder for loose leaves, etc, I do not intend to'limit myself to such use, as such improved clip'joint and the principle applied herein thereby may be applied in all cases where it is desired to bind a fabric,

to metuland I do not-intend to limit 1nyself to the exact form of bindershown, nor even to the use of such invention in book binders, as the same may be used in all cases where it is desired to secure a fienible fabric to a metallic or other straight-edge, whether of fiat, curved or other form in cross-section, in any device, and for any purpose, without departing from the scope of my invention.

I claim 1. A straight-edge, a flexible fabric folded over the straight-edge, and a securing-clip in the form of a slitted tube superposed upon the: folded fabric and straight-edge, the sheet of fabric being-drawn around and over the periphery of the securing clip or slitted tube.

2. A straight-edge, a flexible fabric folded over the straight-edge, and a securingclip inthe form ofa slitted tube of resilient material superposed, upon the folded fabric and straight-edge, the sheet of fabric being drawn around and over the periphery of the securing clip or slit-ted tube.

3. A'straight-edge, a ficxiblefabric folded over= the straight-edge, and a securing-clip in the form of a slitted tube of substantiallycylindrical form in cross-section superposed upon the-folded fabric and straight-edge,

the-sheet of fabric being drawn around and over the periphery of thesecuring clip or,

slitted tube;

4;. A metallic straight-edge, a flexible fabric folded over the straight-edge, and a securing-clip in the form of a slitted tube superposed upon the folded fabric and straight-edge, the sheet of fabric being drawn around and over the periphery of the securing clip or slittcd tube.

5. A metallic straight-edge, a flexible fabric folded over the straight-edge, and a seoutingclip of resilient spring metal in the form of a slitted-tube of substantially cylindrical form in'cross-section superposed upon the folded fabric and. straight-edge, the sheet of fabric being drawn around and over the periphery of the securing clip or slitted tube;

Qumran 6.111 a binder, two segmental shaped back-pieces secured together by cylindrical alternating hinge-joints formed integral With, eachof, such segments, cover-boards,

flexible backing-pieces secured to the coverboards, a clip in the form of a longitudinally slitted tube of substantially c lindri'cal form in cross-section inclosi'ng a to d of each ofthe flexible backing-pieces and theedge an outer flexible back-cover securing the cover-boards to ether.

7. In a "bin er, two segmental shaped back pieces secured together by cylindrical alternating hinge-joints lformed integral with each of such segments, flexible backingpieces, 'and a clip in the forn'i of a longitwdiually slitted tube inclosing a fold of the flexible backing-piece and the edge of the segment, and securing the same upon the binding edge'of each of the segments of the back-piece. l

8. In a .binder, two segmental-shaped back-pieces secur (1 together by a hinge joint, cover-boar s, flexible backing-pieces,f

and a clip in the form of: a longitudinally slitted tube inclos'ing a-fold of the flexible backing-piece and the edge of the segment and securing the same upon the binding edge of each of the' segments of the back: piece, the edges of the flexible backingpieces extending outward'from the securingclip and 'beingsecuredat the forward edges to the cover board.

9'. In a binder, a

cover-boards, a; flexible fabric backing-piece securedtoeachof the cover-boards, and a the segment edge to the cover-board super .posed upon a fold of. the fabric over the edge of the segment.

10. In a binder, a

formed of two segmental-"shaped pieces lonback-piece of substantially segmental shape in cross-section,

. back-piece of. substant1ally segmental shape. in cross section ai gitudinally hinged together, coverboards,-

each of the cover-boards, and a securing clip for eachof the two segmental shaped pieces .in the form of a longitudinally slitted tube around and ever which :the flexible fabric lug-piece or strip folded over. the edge of flexible fabric backing-piece secured to" totlre 'COVB1'-b0ELI(1 superposed upon a fold bi theffabric over the edge of the segment.

joint forgbdok binders, etc, com- \pri'smga metallic back-piece of segmental the metallic back-piece, and a metallic securing-clip in the form of a longitudinally slitted tube superposed upon the fold and back-piece edge, the sheet of fabric being securing clip or sli'tted tube.

12. A means for joining fabrics to straight edges of sheet metal, etc, comprisdrawn around and over the peri h of ing a fold in the fabric superposed upon the ted tube upon the straight edge, so as to bind .the fabric firmly against the same.

13. A means for joining fabrics to straight edges of sheet metal, etc., comprising a fold-in the fabric superposed upon the straight edge, and a longitudinally slittcd tube of substantially cylindrical form in cross-section, superposed upon the fold"; the sheet of fabric being drawn around and over the periphery of the se curing-clip or slitted tube in such manner that'the fabric when drawn upon and put under strain Will rockthe-slitted. tube upon the straight edge, 30 as to bind the fabric firmly against the same.

1 14:. In a binder, a back-piece of substantially segmental shape in cross-section, cover-boards, a flexible fabric backingpiece secured to each of the cover-boards, and a securing clip in the form of'a longitudinally .slitted tube around and over which the flexible fabric backing-piece passes from the segment edge to the coverbo-ard, superposed upon a fold of the fabric over the edge of the segment, and a flexible back cm-eriligpiece extending over and around the segmental back-piece from one cover-board to the other.

n 15. In- 'a' binder, a back-piece of substan itially segmental shape in' cross-section formed of two segmental shaped pieces l0n- .gitudinally hinged together, cover-boards, a flexible fabric backing-piece secured to each ofihe cover-boards, and a securing clip in and a. flexibleback covering-piece. extending over and around the segmental backpiecefrom one cover-board to the other.

Signeo at the city of New York, August 18, 1909. a

p I HUGH. GELLROY BUOHAN. Witnesses:

form in" cross-section. a flexible fabric back- A. M. Penny, ITENRY Newman. 

